2020-2025
From January 2018 to December 2024, 75% of Lassa fever confirmed cases were from Ondo (33%), Edo (31%) and Bauchi (11%).
In 2025, as of epi week 10, 88% of LF cases are from Ondo (31%), Bauchi (25%), Edo (17%), and Taraba (15%) States.
Total confirmed cases: 563
Deaths from Confirmed Cases: 103
Case Fatality Ratio: 18%
Number of Health Care Workers: 17
| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 790 | 175 | 21 | 12% | ||||
| 2024 | 895 | 170 | 12 | 7% | ||||
| 2023 | 925 | 244 | 26 | 11% | ||||
| 2022 | 540 | 187 | 33 | 18% | ||||
| 2021 | 200 | 45 | 12 | 27% | ||||
| 2020 | 350 | 279 | 38 | 14% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 577 | 139 | 11 | 8% | ||||
| 2024 | 473 | 109 | 26 | 24% | ||||
| 2023 | 520 | 71 | 10 | 14% | ||||
| 2022 | 541 | 95 | 10 | 11% | ||||
| 2021 | 31 | 6 | 2 | 33% | ||||
| 2020 | 175 | 35 | 11 | 31% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 955 | 98 | 15 | 15% | ||||
| 2024 | 1029 | 168 | 23 | 14% | ||||
| 2023 | 1208 | 219 | 28 | 13% | ||||
| 2022 | 922 | 154 | 20 | 13% | ||||
| 2021 | 730 | 87 | 11 | 13% | ||||
| 2020 | 761 | 288 | 31 | 11% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 203 | 84 | 26 | 31% | ||||
| 2024 | 149 | 83 | 18 | 22% | ||||
| 2023 | 189 | 67 | 24 | 36% | ||||
| 2022 | 52 | 23 | 10 | 43% | ||||
| 2021 | 46 | 18 | 11 | 61% | ||||
| 2020 | 64 | 47 | 17 | 36% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 82 | 17 | 8 | 47% | ||||
| 2024 | 177 | 42 | 23 | 55% | ||||
| 2023 | 130 | 46 | 24 | 52% | ||||
| 2022 | 158 | 33 | 13 | 39% | ||||
| 2021 | 66 | 12 | 4 | 33% | ||||
| 2020 | 113 | 59 | 14 | 24% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 62 | 15 | 4 | 27% | ||||
| 2024 | 89 | 27 | 1 | 4% | ||||
| 2023 | 28 | 10 | 1 | 10% | ||||
| 2022 | 60 | 27 | 6 | 22% | ||||
| 2021 | 4 | 0 | 0 | – | ||||
| 2020 | 60 | 29 | 8 | 28% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 48 | 11 | 6 | 55% | ||||
| 2024 | 24 | 3 | 1 | 33% | ||||
| 2023 | 24 | 6 | 0 | 0% | ||||
| 2022 | 92 | 15 | 6 | 40% | ||||
| 2021 | 2 | 0 | 0 | – | ||||
| 2020 | 14 | 5 | 1 | 20% | ||||
Source: NCDC |
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| Years | Suspected cases | Confirmed cases | Deaths | CFR | ||||
|---|---|---|---|---|---|---|---|---|
| 2025 | 27 | 5 | 3 | 60% | ||||
| 2024 | 921 | 59 | 9 | 15% | ||||
| 2023 | 82 | 32 | 3 | 9% | ||||
| 2022 | 181 | 30 | 8 | 27% | ||||
| 2021 | 9 | 2 | 0 | 0% | ||||
| 2020 | 20 | 7 | 2 | 29% | ||||
Source: NCDC |
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Any questions or suggestions? Contact us: Anaïs Legand and Antoine Chaillon
As of 2025, week 10